手動耐高溫刀型閘閥
手動耐高溫刀型閘閥manual butt-clamp knife gate valve
設(shè)計制造 Design and manufacture: JB/T8691-1998
結(jié)構(gòu)長度 structural length: GB/
法蘭連接 Flange connection: GB/ JB/T79-94
試驗與驗收 testing and acceptance:GB/T13927-92
手動耐高溫刀型閘閥主要零部件材質(zhì) Key parts material